baber/WOPTO huggingface dataset:
Patent GB-930985-A (GB)
Title: Process for the preparation of cyclohydrocarbon polymeric compounds and mineral oil compositions containing them
IPC: C08F36/20
Filed: 1962-03-01
Abstract: Oil soluble non-crystalline cyclohydrocarbon polymers (see Group IV(a)) which are shear stable are added in a minor amount, e.g. 0,01 to 5% by weight, to mineral oils, e.g. lubricating oils, to improve the viscosity-temperature characteristics of such oils.  The polymers are prepared by polymerizing alpha, omega-diolefines or mixtures thereof or copolymerizing such diolefines or mixtures with alpha-monoolefines.  Oils mentioned are transformer, turbine, mineral lubricating and industrial oils and hydraulic fluids.  In examples, the polymers added are biallyl/3-methyl 1,5-hexadiene; biallyl/ethylene/1-hexene; biallyl/1-hexene; 3-methyl-1,5-hexadiene; biallyl/1,6-heptadiene and biallyl/1-octadecene.  Additives such as phenolic anti-oxidants, arylamines, dialkyl or diaryl sulphides and antiscuffing agents such as organic phosphorus compounds and their thio-derivatives, e.g. P2S5-terpene reaction products, and alkali metal salts thereof and phosphonates, e.g. dibutyl trichloromethane-phosphonate, may also be added to the oil compositions, numerous examples of such additives being given.ALSO:Crystalline and non-crystalline cyclohydrocarbon polymeric products are produced by polymerizing alpha, omega-diolefines or mixtures thereof or copolymerizing such alpha, omega-diolefines or mixtures with alpha-monoolefines in the presence of a catalyst obtained by reacting aluminium triethyl and titanium tetrachloride in a liquid hydrocarbon medium in a mol. ratio of 0.1:1 to 0.4:1 at elevated temperature and thereafter adding aluminium diethyl chloride in an amount to give a total aluminium to titanium mol. ratio of at least 1:1.  The liquid hydrocarbon medium is preferably an alkane or iso-alkane having 5 to 8 carbon atoms. Crystalline cyclohydrocarbon polymer products useful as plastics or fibres may be prepared by polymerizing in the presence of the above catalyst alpha-, omega-diolefines such as butadiene, pentadiene, biallyl, 2-methylbiallyl or heptadiene or mixtures of said alpha, omega-diolefines, or preferably copolymerizing them or their mixtures with ethylene.  Non-crystalline oil-soluble cyclohydrocarbon polymer products may be prepared by copolymerizing in the presence of the above catalyst alpha, omega-diolefines or their mixtures with alphamonoolefines of 3 to 30 or more carbon atoms.  Lists of monomers which may be copolymerized are given.  In the examples the monomers polymerized are: (I) biallyl and 1-hexene; (II) 3-methyl, 1-5-hexadiene; (III) biallyl and ethylene; (IV) biallyl; (V) 1,6-heptadiene; (VI) biallyl and 1,6-heptadiene; (VII) biallyl, ethylene and 1-hexene; (VIII) biallyl and 1-octadecene; (IX) 1,6-heptadiene and 1-octadecene and (X) biallyl and methyl 1,5-hexadiene.  The polymers of the invention can be incorporated in mineral oil products.
Patent GB-911451-A (GB)
Title: Improvements in or relating to bus and like seats
Inventor: SMEDLEY ERNEST
IPC: B60N2/14
Filed: 1960-03-08
Abstract: 911,451. Reversible seats. LACE WEB SPRING CO. Ltd. June 5, 1961 [March 8, 1960], No. 8097/60. Class 52 (2). In a bus or like seat, the seat frame 1 is mounted on the upper end of a vertical pivot pin 2 carried by a platform 4 movable longitudinally of a base frame 6 and the pivot pin is connected to a fixed point 11 on the base frame 6 by means adapted to move the platform 4 longitudinally of the base frame when the pivot pin 2 is turned about its axis. The pivot pin 2 is secured to the seat frame 1 and to an upper part of a turntable 3, the lower part which is mounted on the platform 4 and the pin 2 is turned by movement of the seat frame 1, the initial movement of the seat frame from either its forward or rearward facing position moving the platform away from the side of the vehicle in which the base frame 6 is fixed. The platform 4 is provided with runners to run on a track 5 on the base frame 6. An arm 7 is secured to the pin 2 and is jointed to a second arm 10 carried by a pivot pin 11 on the base frame. The arms 7, 10 are provided with interengaging toothed quadrants 8, 9 held in engagement by a strap 13. The seat frame 1 may be held in its forward and backward facing positions by a releasable catch 17 (Fig. 1). The catch engages automatically in recesses 16 in cam plates 14, 15 carried by the base frame 6. The catch is held in engagement with the recesses 16 by a spring 19. Any side thrust on the turntable 3 when the seat is in use is obviated by providing the base frame 6 with brackets 21 which carry plates 22 engaging with plates 23 on the underside of the seat frame 1. The seat back 24 is angularly adjustable and may be held in adjusted position by a retractable bolt 26 (Fig. 3) engaging in holes in a plate 27.
Patent GB-1001009-A (GB)
Title: Working aluminium
IPC: B21C23/01
Filed: 1963-02-28
Abstract: In the backward extrusion of aluminium or aluminium alloy the starting workpiece is formed by compacting and sintering.  The powdered metal is cold compressed in a rotating die press and then sintered in a vacuum furnace or arc electric resistance furnace at 630  DEG C. After tumbling with zinc stearate which acts as a lubricant, the workpieces are backwardly cold-extruded in an eccentric press to produce small tubes or containers.  These may be annealed subsequently.  An example is given of an aluminium alloy of the following percentage composition: Al 99.34, Si 0.15, Fe 0.32, Al2O3 0.12; fats 0.04; moisture and volatile substances 0.03. Specific powder sizes, compacting pressures and compact densities are given.
Patent GB-458498-A (GB)
Title: Improvements in and relating to coating compositions
IPC: C09D167/00
Filed: 1935-03-15
Abstract: Pigmented coating-compositions containing polyhydric alcohol-polycarboxylic acid resins are rendered resistant to the growth of mould by incorporating therein organic compounds of mercury in small quantity.  The resins may be prepared from glycerol, ethylene glycol, diethylene glycol, polyvinyl alcohol, polyglycerols, triethanolamine, penta-erythritol, monobenzylin and pentaerythritol diethylether on the one hand and phthalic, succinic, adipic, sebacic, maleic, itaconic, tartaric, citric, dilactylic, thiodilactylic, salicylacetic, chlorophthalic, diphenic, pyromellitic and naphthalic acids on the other hand; modifying agents may be employed, such as linseed oil, cotton-seed oil, castor oil, ester gum, Congo glycolide, ethyl abietate, stearin, triacetin, butyl acetate, dibutyl tartrate, ethyl benzoate, rosin, kauri and Congo, stearic, oleic, butyric, lactic, salicylic and benzoic acids and the acids of chinawood oil, cottonseed oil, soya bean oil and coconut oil.  Organic compounds of mercury specified are ethylmercuric chloride, oleate, arsenate, and phosphate; acetoxymercuricresol, hydroxymercuri-p-cresol, sodium ethylmercurithiosalicylate, 2-chloromercuri-3-nitrobenzoic acid, anhydro-o-hydroxymercuribenzoic acid, p-hydroxymercuri-o-nitrophenol and p-hydroxymercuri-o-chlorophenol; mercuric sulphocyanate, benzoate, salicylate and oxalate; mercurous oxalate and acetate; anhydrohydroxymercuripropionic acid, a -mercuridinaphthyl, mercuri-hydroxymercuriacetic acid and mercuri-bis-biphenyl; mercury oleate, b -naphtholate and phenolate; phenylmercuric nitrate and hydroxide.  The pigment present may consist of lithopone, antimony oxide, chrome yellow, chrome green, Prussian blue, carbon black or titanium oxide, but extender materials such as talc, whiting, barytes, silica, asbestine and china clay may be used.  Examples are given of paint compositions consisting of: (1) a resin prepared from phthalic anhydride and glycerol in the presence of linseed oil acids, a barium base titanium pigment, asbestine, ethylmercuric arsenate or p-hydroxymercuri-o-chlorophenol or mercury oleate, a drier and a thinner; (2) a resin prepared from phthalic anhydride and glycerol in the presence of linseed oil, a barium base titanium pigment, antimony oxide, p-hydroxymercuri-o-chlorophenol, a drier and a thinner; (3) a resin prepared from phthalic anhydride and glycerol in the presence of linseed oil acids alone or in conjunction with chinawood oil or its acids or soya bean oil, titanium dioxide, antimony oxide, mercuric salicylate, a drier and a thinner.
Patent GB-350908-A (GB)
Title: Improvements in sprayers
IPC: B05B7/24
Filed: 1930-03-13
Abstract: 350,908. Spray-producers. FRENCH, A. W., Mysto Works, Ladvwood, Birming- ham. March 13, 1930, No. 8197. [Class 69 (iii).] A paint &c. sprayer of the kind in which air and paint nozzles are arranged at right-angles so that the stream of air induces and atomizes liquid from the other nozzle, is provided with a selfcontained valve unit for controlling the air supply mounted in a transverse passage in the handle. The unit may be separately manufactured and the head of the apparatus cut around it. The unit comprises a tube 19, Fig. 1, provided with a valveseat situated between bores in alignment with passages 18, 13 in the handle 14. The tube 19 is held in place by screw plugs 27, 28 through one of which passes the stem 23 of a spring-pressed valve 24, which is operated by a trigger 32. Fig. 4 shows a modification in which air is allowed to escape when the sprayer is not in use. For this purpose an additional vent is provided having a valve seat 36 normally open but which is closed by the end 38 of the valve stem 37 when the valve 24 is open. A passage 40, Fig. 1, controlled by a valve 41, may be provided to admit compressed air into the vessel 2 when spraying heavy liquids.
Patent GB-472267-A (GB)
Title: Control device for variable condensers applicable also to other purposes
IPC: H03J1/14
Filed: 1936-03-19
Abstract: 472,267. Engaging and disengaging toothed gearing ; variable-speed gearing. THOMAS, A. March 19, 1936, No. 8229. Convention date, March 19, 1935. [Classes 80 (i) and 80 (ii)] [Also in Groups XXXVI and XX] A control device for a variable condenser or like apparatus, giving a coarse and a fine adjustment and operated by an initial rotary movement imparted to a control member, comprises a rotatable and axially movable primary shaft associated with coarse adjustment means and fine adjustment means, one or other of which is retained under spring pressure in operative position by means of a leaf spring associated with and adapted to be flexed to one or other of two stable positions by axial displacement of the primary shaft. The shaft 7 of a variable condenser is adjusted by rotating a shaft 9 which is slidably supported in a plate 2 so that in the position shown a fine adjustment is obtained but when the shaft is pushed inwards a coarse adjustment can be made. The fine adjustment drive is obtained from the shaft 9 through two friction discs 10, 11 thereon, between which engages a friction disc 15 on a shaft 14. This shaft is freely rotatable in a sleeve 13 carried by a leaf spring 12 which is fixed to the shaft 9 and can occupy one of two positions, so that when the shaft 9 is moved inwards the spring snaps over from the position shown to its second position. In the position shown for obtaining fine adjustment a gear 16 on the shaft 14 is in mesh with a toothed wheel 8 which drives the shaft 7 through gearing but when the spring 12 occupies its second position, the shaft 14 swings angularly and moves the gear 16 out of engagement with the toothed wheel 8. The inward movement of the shaft 9, in addition to disengaging the members 8, 16, moves a friction plate 9<1> fixed to the end of the shaft 9 into engagement with the face of the wheel 8, and this forms a clutch in the drive for the rapid control. The spring 12 also prevents backlash.
Patent GB-576049-A (GB)
Title: Improvements in or relating to artificial arms
IPC: A61F2/58
Filed: 1944-05-02
Abstract: 576,049. Artificial limbs. BLATCHFORD, W. A. May 2, 1944, No. 8239. [Class 81 (ii)] In operating means for a gripping appliance or hand member of an artificial arm comprising a lever 40, Fig. 1, with a depending extension 41 engaging a centrally arranged plunger 17, Fig. 4, of the gripping appliance, the lever is moved by a flexible member 43, secured to and passing over a drum or pulley 44 or a sleeve 45, and braking means, such as a coiled spring 48 mounted on the sleeve and secured at one end, are provided to act automatically on the sleeve when it is rotated in one direction, with means such as an appendage 49 to release the braking. The brake serves to maintain the plunger 17 in a depressed position and, with the gripping member shown in Fig. 4, to keep the jaws 33 and 34 closed against the action of a spring 57. Instead of the plunger 17 being of solid construction it may be formed with a spring portion between two solid end portions, so that a certain amount of "feel" is given to the gripping jaws before an article is gripped firmly. The stem 19 of the gripping appliance may be rotated in the tubular member 20 on the forearm bucket, may be withdrawn therefrom, or yieldably or positively locked therein, by means of the kind described in Specification 550,886.
Patent GB-389279-A (GB)
Title: Improvements in or relating to kettle handles
IPC: A47J45/08
Filed: 1932-03-21
Abstract: 389,279. Kettle handles. JOSEPH, Ltd., N. C. and JOSEPH, B. C., Aluminium Works, Birmingham Road, Stratford-on- Avon. March 21, 1932, No. 8288. [Class 66.] A kettle handle comprises a bent metal strip 1, the centre portion 2 of which is reduced in width and fitted with covering plates 3, 4 of moulded material held in place by screwed pins 6 engaged by nuts 7. The abutting edges of the covering plates may be rabetted so as to interengage.
Patent GB-253639-A (GB)
Title: Improvements in scale reading devices for angle-measuring instruments
IPC: G01C1/00
Filed: 1925-03-28
Abstract: 253,639. Wilson, J. S., and Taylor, E. W. March 28, 1925. Theodolites.-In a scale-reading device for angle-measuring instruments in which the mean of two readings on a scale is obtained to compensate for errors in centring &c., the images of the two points on the scale are brought into a common eyepiece provided with a micrometer and reading indices, the arrangement being such. that an index can be displaced along one scale image without affecting the micrometer reading, and rotation of the micrometer head displaces an index over the second scale image without displacing the first-mentioned index. The indices are adjusted so that one coincides with a division on one scale image and the other with a division on the other scale image. The graduated micrometer head then indicates directly the smaller units of the mean reading. Figs. 1 and 2 show the application of the invention to the vertical and horizontal circles of a theodolite. Light entering by a reflector a is reflected by prisms b, c to two diametrically-opposite points of the scale d which reflects it back by way of the prisms c, b to two prisms f having their exit surfaces normal to the principal rays. The rays then pass through the object glass g to produce the two scale images in the focal plane h, a septum i being provided to separate the ray pencils. In the case of the horizontal circle, a penta-prism k is used to direct the rays horizontally. The two scale images have their graduations increasing in opposite directions in the field of view, Fig. 4. The micrometer, Fig. 3, comprises a fixed glass plate carrying reading marks l, Fig. 4, and two slides m, q carrying reading marks n, p respectively. The slides can be moved bodily, without turning the graduated head r, by rotating the knob o, and the slide q is displaced alone by turning the head r. If, as in Fig. 4, each division on the scale represents 10 minutes of arc, the pitch of the micrometer screw is such that one complete turn moves the marks p through a distance of two divisions or 20 minutes, but the maximum graduation on the drum is 10 minutes. Fig. 4 shows the position of the marks after adjustment of the micrometer, the knob o having been turned until the marks n coincide with the graduation 90‹ 40', and the head r then having been turned until the marks p coincide with the graduation 270‹ 40'. The head r then shows 7' 30", the true mean reading being thus 90‹ 47' 30". The reading marks l may be constituted by the images of two marks at diametrically opposite points in the plane of the graduated circle, these marks being so disposed that their images remain stationary as the telescope is turned. Instead of displacing the reading marks n, p together as described above the whole system of images may be adapted to be moved past the marks by including in the optical system an adjustable deviating device such as a rotatable parallel glass plate.
Patent GB-477321-A (GB)
Title: Improvements in and relating to marking tags and like labels
IPC: G09F3/04
Filed: 1936-03-20
Abstract: 477,321. Marking-tags. MOGENDORFF, J., MOGENDORFF, S. I., and MOGENDORFF, M., (trading as MOGENDORFF, GEB.). March 20, 1936, No. 8399. Convention date, July 5, 1935. [Class 73] In a marking-tag of the kind comprising a tongue punched or cut from the material of the tag, the tongue 2 is provided with side projections 8 made by perforating the tag at the ends of the line 7 where the tongue joins the body, and at two further points near the end of the tongue. The perforations are joined by parallel cuts 4, 6, and projections 9 may be formed on the body of the tag.
Patent GB-1072061-A (GB)
Title: Improvements in or relating to television camera tubes
Inventor: HENDRY ERIC DOUGLAS
IPC: H01J29/02
Filed: 1964-02-28
Abstract: 1,072,061. Television pick-up tubes. ENGLISH ELECTRIC VALVE CO. Ltd. Dec. 23, 1964 [Feb. 28, 1964], No. 8415/64. Addition to 831,444. Heading H1D. The charge storage target assembly of the parent Specification has spring members (12) carried by the grid support (2) and applying light springy pressure, through the intermediary of the grid (1), on the spacer strips (6) between the grid and the storage target (7) in order to provide further damping. The spring members are arched, springy, metal strips lying under and parallel to the spacer strips. A single arched spring, or two bent-up springs one at each end, may be provided under each spacer strip.
Patent GB-192959-A (GB)
Title: Improvements in the electrical operation of automatic weighing machines
IPC: G01G23/18
Filed: 1922-03-23
Abstract: 192,959. Underhill, H. W. March 23, 1922. Permanent records, apparatus for giving.-The recording mechanism of an automatic weighing machine is controlled electrically through a fluidcontact device c closed by the steelyard a when loaded thus energizing a time-relay coil d which operates a contact-carrying member e to close a second electric circuit k, whereby the recording mechanism is connected to the driving motor. The time limit relay is designed to give the necessary time lag to allow the steelyard to settle into equilibrium. To prevent the recording mechanism registering two records for the same load, the switch g is opened by mechanical connections immediately the mechanism begins to operate and is automatically closed by the return of the steelyard to its normal position.
Patent GB-963570-A (GB)
Title: Improvements in regulator systems for use in combination with rheostatic braking equipment
IPC: H02P3/12
Filed: 1963-03-04
Abstract: 963,570. Control of D.C. motors. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. March 4, 1963 [March 5, 1962], No. 8512/63. Heading H2J. A motor 1 is adapted to be connected across braking resistor R, the field winding 1C of the motor being associated with exciter 3 whose field winding 3A is fed from amplifier A. Relays Ri, RI are responsive to the armature currents of the exciter and motor respectively and have contacts 10, 11, which operate when the said currents exceed predetermined values. A relay RC also has contacts 12 in the input circuit of the amplifier, and is controlled by means responsive to the product of the armature and field currents of the motor whereby the contacts 12 operate when the braking torque becomes excessive. For this purpose, the relay RC is energized from Hall plate H which is supplied with current X proportional to the motor armature current and is mounted in the air-gap of a magnetic core which carries winding P energized in accordance with the motor field current. When contacts 10-12 are raised, capacitor 7 is charged through resistor 8, lowering of any one of the contacts causing the capacitor to discharge through resistor 9 so that the output current of the amplifier decreases and the contacts are eventually restored to their original position. When relay Ri is energized, contact 13 closes and pilot motor M drives cam-shaft Ca to reduce resistor R. At the same time, resistor R1 is increased to re-calibrate relay RI. The exciter 3 is driven by a compound motor 5 which is speed-stabilized by negative feedback from the exciter to an auxiliary field winding 5C of the compound motor.
Patent GB-699893-A (GB)
Title: Improvements in or relating to ultra high frequency travelling wave oscillators
IPC: H01J25/40
Filed: 1952-04-03
Abstract: 699,893. Travelling wave tubes; magnetron oscillators. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. April 3, 1952 [April 13, 1951], No. 8569/52. Class 39(i) [Also in Group XL(c)] A travelling wave oscillator comprises a delay line capable of supporting a mode having negative phase velocity but a positive flow of energy, the - load circuit 8 is coupled to the end of the line where the electrons enter the interaction space and an energy absorbing termination 10 is provided at or near the other end of the line adjacent to the collector 6, the electron beam travelling in the same direction and with the same velocityas the phase velocity but oppositely to the energy flow. The mode used is a selected spatial harmonic mode. The delay line may be a helix, multi-vane structure or disc loaded rod but is preferably of an interdigitated or zig-zag form, Figs. 2, 3 (not shown) since the latter ensure a predominant spatial harmonic component of negative phase velocity. In one form, Fig. 1, the beam from gun 1 is subjected to crossed electric and magnetic fields in known manner. It is stated that the wave is initiated by random noise voltages induced by the beam and since the line is essentially dispersive for the mode used the frequency of oscillation is determined by the beam velocity which is equal to the phase velocity of the wave. The oscillation frequency can consequently be varied by varying the transverse electric and/or magnetic fields. The load 8 is preferably accurately matched to the line at the end adjacent the cathode, and a matched termination 10 is provided at or near the other end. 10 may be a colloidal graphite or metal coating on an insulating support or on the line, or may be formed by making the end of.the line of absorptive material; it may be inside or outside the tube and if inside may or may not bound part of the interaction space; if outside it may be a water resistance. The device may be used for pulsed or continuous oscillation. Pulse, amplitude or frequency modulation can be employed, the first two by means of a grid (not shown) and the third by superposing a modulating voltage on the transverse electric field e.g. from source 11. The invention may also be applied to magnetically focused linear travelling wave tubes not employing crossed fields, or to travelling wave tubes bent into a circle. The collector 6 may be integral with the delay line. Reference is made to prior art travelling wave oscillators employing electronic tuning. Specification 699,890, is referred to.